Gauge for shoe nailing machines



H. D. BLAIR ET AL GAUGE FOR SHOE NAILING MACHINES Fil ed Sept. 25, 1950 1NVENTOR S 2 g ATTORNEY? a Patented Nov. 8, 1932 UNITED STATES PATENT OFFICE HENRY I). BLAIR AND HOWARD M. VIEST, OF JOHNSON CITY, NEW YORK, .ASSI GNOBS TO ENDIGOTT JOHNSON CORPORATION, OF ENDICOTT, NEW YORK, A GORPORATION OF NEW YORK GAUGE FOR SHOE NAILING MACHINES Application filed September 25, 1930. Serial No. 484,432.

the outsoles are fastened to the insoles of.

shoes or boots in the manufacture thereof. customarily before the work is brought to the machine an outsole, of leather or rubber, is temporarily attached to the shoe while the latter is still on an iron bottomed last, the outsoles being usually fastened to the insole by means of five fitting nails in the sole portion, and three in the heel portion which are driven through the outsoles and insoles and intended to be clinched when they strike the iron on the bottom of the last. After the outsole has been thus fastened to the insole, the last is removed and the shoe sent to the bottoming room where the outsole is fastened or nailed on the insole by the loose nailing machine 1 above referred to.

Such nailing machine is usually provided with a roller guide, the edge of which follows the contour of the outsole; some nailing machines have a guide which follows the contour of the insole. The shoe is placed on the nailing machine, sole up, and the operator presses the edge of the outsole against the outside roller guide, if the machine be equipped therewith, or if the machine is equipped with an insole guide, presses the shoe against the insole guide; in either case the guide follows the contour of the outsole or insole according to which guide is in use. He then starts the machine and commences nailing at the shank passing around the forefastening the outsole to the upper and insole.

The insole guides as heretofore used have been found impracticable, and are little used because they slip oi the shoe in the nailing operation. Therefore the outsole guide only is now generally used; in using this guide the operator must press the edge of the outsole against the roller guide and the pressure thus exerted will tend to displace the outsole relative'to the insole unless the outsole is securely nailed in position with the eight temporary fitting nails above referred to. Further, with the outsole guide, if the sole becomes displaced, the nails put in by the nailing machine will in some cases miss the insole and only hit the upper and outsole at one side of the shoe, while on the other side, the nails will be placed too far toward the center of the sole and miss the upper where it turns under. Therefore, when the outsole or insole guides as heretofore made are used separately on nailing machines, the eight or more fitting nails referred to are absolutely necessary, and even then the outsole sometimes will be pushed over or displaced, as stated, resulting in defective shoes because the upper has not been properly caught by the nails.

Because of the number and-location of the fitting nails required a great deal of trouble has been experienced by manufacturers, after the shoe has been put out to the trade, due to imperfect clinching of the fitting nails-and the failure of the operators to completely remove such defectively clinched fitting nails. Inspection at the factories sometimes fails to reveal that these temporary fitting nails have gone entirely through the insole without being clinched, and in many cases peoples feet have been cut and injured by such nails.

The object of the present invention is to provide a roller guide whichwill eliminate, as far as possible, the use of so many fitting nails, and at the same time insure a secure and uniform fastening of the outsole, upper and insole.

The present invention provides an attachment for such nailing machines comprising an outsole guide and insole guide the latter of which can be adjusted up and down, and sidewise, for soles of different thickness and extension. The outsole roller guide will follow the edge of the outsole, while the insole roller guide will follow the contour of the insole where the upper turns over it. This permits the shoe to be nailed on the loose nailing machine with only slight pressure to hold the shoe against the guide rollers, as a result of which, instead of eight fitting nails being required as heretofore, the outsole can be held in place, if of rubber, with one nail in the extreme forepart of the sole and one in the heel, and if of leather by two nails in the extreme forepart of the sole and two in the heel. are placed in the toe are placed so far for- '5 ward and so near the end that the toes of the wearer ofv the shoe-will. not be hit by the nails if improperly clinched. This practically eliminates the danger of injury. to purchasers of the shoes by failureto remove the summarized in the claims the novel features oft-the invention and novel. combinations of parts :for which. protection is desired. 95 Insaid drawing: I

Fig.1 isa view of part of a shoe nailing machine with our improved guides applied thereto.

Fig. 2; is an enlarged top plan view of the guides detached.

Fig. 3 is a. side view of" Fig. 2. Eig. 4 isa transverse section on. the line ofiFig. 3-. .The attachment comprises an angular bracket. having a. channeled top member 1 and: a. depending member 1a. In the channeled member- 1 is fitted the base 2a of an arm 2 which carries a pin 2?) on which the upper sole engaging guide roller R is 47; mounted. A fastening bolt 3. extends through the member 1- of the bracket and. through a slot 26 in the base 2a. ofthe arm 2 and: is tapped into-a: memberF' of, or attached. to;. the shoe nailing machine, said 555 member F not: forming; any part? of the present invention; The slot 20 in base 2a, thnoughswhich the bolt: 3 passes, is elongated so that the arm 2 can be adjusted laterally on the bracket 1 if desired.

A. second bracket 4- hasa depending port-ion: 4a which extends beside the bracket member 1u,.opposite the bolt'3,. and is pivoted on: a: pin or-screw 46011 member 1a. Member'ta-has a' notch in its rear end 555 which engages the periphery of a disk 5 threaded upon a rodror pin 10 disposed in a slot intheend ofthe member 1a as shown. By adjusting the disk 5 the arm A can be tilted oni the pivot 47).-

(9n: theupper portion of bracket 4 is mounted oneend of a-bar Gonthe outer end of: which is'azpinfia on which is-pivoted-the lower-insole engagingjrollerR. The bar'6' The. nails which justed by a screw 7 tapped through an opening in a flange 0n the rear end of the member 4:. The bar 6 is normally retracted and held against screw 7 by means of a contractile spring 8 fastened to the bar 6 on one end and to a screw Saon the member 4a at the other end.

r The roller R can be adjusted relatively to the roller Rby adjusting the base 2a inme1nber l; and the roller R can be adjusted. inward or' outward by turning the thumb screw 7a... The roller R can also be adjusted or tilted slightly at an angle to the roller R by adjusting the disk 5 and when so adjusted can be locked in adjusted position by means of a screw 9 tapped through an opening in the bracket 1a and passing through a slot. in member 4a and. engaging a nut 96. v

' Operation The operator standing infront of thez machine takes, a shoe (the following descrip tion will apply to the shoe for the right foot), and turns it bottom up in position so that the outside of the shoe will be away from him. (Of course if the operator is working upon a shoe for the left. foot, the operationwill begin upon-the inside edge of the sole and end with the outside edge of the sole.) That" part of the outside of the shoe adjacent theheel; breast is then pressed against thetwo guide rollers, the insole roller R comingin'.

and the insole, at a uniformdistance from the:

edge of the outsole, the row of nails being'put in, in a direction from left to right around the outside of the shoe (for right foot) and then around the toe, the shoe being turned inthe hands of the operator properly for that purpose; after the row of nails is inserted around the toe, it then follows the inside of the shoe to a point near the-heelbreast, theoperator all of the time pressing the shoe against the guide roller R.

The position of the row of nails is always determined by the insole roller guide R. The outsole roller guide R merely prevents the outsole projecting too far over the edge of the insole during the operation. After the nailing is completed along one side of the shoe there is really no further need or use for the outsole guide roller.

Our novel guides obviate the necessity of fastening the outsoleto the insole by means of eight fitting nails which heretofore have been driven through the outsole, insole and into the last, as above explained; and the.

outsole can be lightly held upon the lasted shoe by means of one or two fitting nails at the toe and one or two at the heel as hereinbefore described. The fitting nails in the forepart of the sole, that is, at the toe, will be so near the edge of the forward end of the sole that if it is improperly clinched or goes into the last and remains in the shoe when taken from the last it cannot be touched by the toes of the wearer. This method effects a great saving as follows: in the quantity of nails required to be used, the time of the operator in driving a less number of fitting nails, in time of inspection to ascertain if the finished shoe has any imperfectly clinched fitting nails and removing them, if any, and in the smaller number of defective shoes from improper nailing.

The rollers B, R are fastened positively to the machine while in operation and when set in any position relatively to each other are not yieldable in any way; and the shoe upon which the work is being done is pressed against the rollers by the operator, neither roller being yieldably pressed to its work.

We claim 1. A roller work gauge for shoe nailing machines; comprising a bracket attachable to the frame of the nailing machine, an arm adjustably mounted on said bracket, a roller mounted on said arm, a bracket pivotally mounted on the first bracket, means for adjusting the second bracket on its pivot; an arm adjustably mounted on the said second bracket, a roller pivotally mounted on the end of said second arm, a screw for adjusting the second arm on the bracket, and a spring for holding said arm in contact with the screw; said rollers being unyieldably held in position during operation.

2. A work gauge for shoe nailing machines comprising an angular bracket attached to the frame of the nailing machine and having a channeled top member; an arm adjustably mounted in the channeled top member; a second bracket pivotally mounted on the first bracket beside the channeled top member; means for adjusting the second bracket on its pivot, an arm adjustably mounted on the said second bracket, a guide roller mounted on the end of said arm, and means for adjusting the arm on the bracket.

HENRY D. BLAIR.

HOWARD M. WEST. 

